First-principles plane-wave pseudopotential calculations were conducted to investigate the atomic structure and energies of SmBa2Cu 3O6(Sm123)/BaZrO3(BZO) and Sm123/MgO interfaces. For Sm123/BZO, the interface was found energetically preferable when it composed of BaO layer under any possible conditions of chemical potentials. The stability of Sm123/BZO interface was attributed to local atomic arrangement. The chemical composition common to Sm123 and BZO was confirmed by high-resolution transmission electron microscopy.
ASJC Scopus subject areas